Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quem ganhou o single feminino em 1961?
 ###Tabelas: CREATE TABLE numbers_from_0–5 (numbers_from_0–5_id AUTO_INCREMENT PRIMARY KEY, Value INT, Khmer INT, Word Form VARCHAR, UNGEGN VARCHAR, ALA-LC VARCHAR, Other VARCHAR) CREATE TABLE past_winners (past_winners_id AUTO_INCREMENT PRIMARY KEY, Year INT, Men's singles VARCHAR, Women's singles VARCHAR, Men's doubles VARCHAR, Women's doubles VARCHAR, Mixed doubles VARCHAR) CREATE TABLE premier_league (premier_league_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Opponents VARCHAR, Result F–A VARCHAR, Attendance INT, League position VARCHAR) CREATE TABLE list_of_recent_lower_tier_county_cup_south_winners (list_of_recent_lower_tier_county_cup_south_winners_id AUTO_INCREMENT PRIMARY KEY, Season VARCHAR, Junior (South) Winners VARCHAR, Intermediate (South) Winners VARCHAR, Minor (South) Winners VARCHAR, Primary (South) Winners VARCHAR) CREATE TABLE ships_in_class (ships_in_class_id AUTO_INCREMENT PRIMARY KEY, Ship VARCHAR, Hull Number VARCHAR, Laid down VARCHAR, Launched VARCHAR, Commissioned VARCHAR)  
SELECT Women's singles FROM past_winners WHERE Year = 1961